Rail-drill.



L. W. MORTON.

I BAIL DRILL.

APPLICATION FILED JUNE 26, 1911. 1,0745 1 '7. Patented Sept. 30, 1913.

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L. W. MORTON. RAIL'DRILL. APPLIOATIOKVIILHD mm; 26. 1911.

COLUMBIA Moonn co., WASHINGTON, n. c

L. W. MORTON.

RAIL DRILL.

APPLICATION FILED JUNE 26, 1911.

3 SHEETS-SHEET 3.

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drill framework.

LEsLInw. ivi'oli'folv, 0i Gannon, ILLINOIS.

RAIL-bRILL.

' Specification of Letters Patent.

Application filed June 26, 1911.

Patented Sept. 3%, 1913.

Serial No. 635,366.

To all whom it may concern:

Be it known that I, LEsLm W. MORTON, a citizen of the United States, residing at Canton, in the county of Fulton and .State ofIllinois, have invented certain new and useful Improvements in Rail-Drills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I Y i This invention relates to rail drills.

Anobject ofthe invention is to provide a rail drill which will effectively perform its duties and which may be readily swung to proper position for engagement with the rail to be drilled.

Another object is to provide a mechanism of this character which will be of simple construction and operation and effective in the performance of its duties.

Other objects and advantages will be here: inafter 'set forth and pointed out in the specification and claims.

In the accompanying drawings which are made a part of this application, Figure 1 is a side elevational View of the drill. Fig. 2 is a longitudinal sectional view through the drill. Fig. '3 is a topplan view of the drill in engagement with a rail. Fig. 4 is a detail view of the front cross connection of the Fig. 5 is a vertical sectional view through the forward portion of the drill framework, and,- Fig; 6 is a vertical sectional view through the rear of the drill framework.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, the drill framework consists of' the parallel side plates :1 connected at their front and rear ends by connecting braces. The rear ends of the plates are connected by the horizontal brace 2 having its opposite ends turned inwardly at right angles, as shown at 3, and'bolted to the side plates by bolts or other suitable securing means 4. At their front ends they are connected by the front connecting device 5, having its ends 6 bent inwardly at right angles and secured to the side plates 1 by suitable securing means 7. The connecting brace 5, however, has formed integral therewith the flat plate 8 having a downwardly tapered central opening 9 ending in a forward and downward direction, through which opening the bit tioned suitable ball bearings 23.

may be oiled, as will be later more fully stated. WVithin the main portion of the front connecting brace 5 is the circular opening 10, through which the bit travels during the operation of boring a rail, the main portion of this brace resting against the web of the rail being bored.

Each side plate 1 has the greater portion of its upper and lower edges turned inwardly at right angles to strengthen said plates, as shown at 11. The lower turned edges of these plates. are curved upwardly and outwardly near their front ends to rest upon the upper surface of the base of a rail and upon the outer extremities of these turned lower edges rests the lower edge of the front connect-ing cross member 5, which is adapted to engage the adjacent side of the web of the rail to be bored, when the device is in position for operation.

Positioned near the center of the framework and extending from side plate to side plate are the parallel shaft receiving and supporting braces 12, which have their ends 13 turned in opposite directions toward the opposite ends of the framework and secured in any suitable manner to the side plates 1. The parallel portions of these central braces 12 are provided with central shaft receiving openings, around which are circular integral flanges 14, extending outwardly in opposite directions from said braces, the purpose of which will be readily seen. Rotatably secured through the flanges 14 and the openings of the braces 12 is the shaft 15 having a suitable longitudinal keyway or slot 16 ex-- tending from its forward end to within a short distance of its rear end for the pur pose of receiving a suit-able key carried by the bevel gear 17 and its collar 18 positioned between the braces 12, looking the bevel gear and its sleeve withtheshaft 15, the sleeve 18 serving to-retain the gear 17 in position between. the braces 12, as will be readily seen. The rear end of the shaft 15 is reduced, as shown at 19, to receive the lower rounded portion 20 of the gear plate 21 having the fiat gear teeth 22 upon a portion of its upper surface. Between the rounded portion of the gear plate 21 and the large portion of the shaft 15 are posi- Secured upon the extremity of the reduced portion 19 of the shaft 15 is the nut 24, spaced from the rounded portion 20 of the gear plate 21 by ball bearings 25. If desired,v a cotter or other locking pin 26 may be passed through the nut 24 and the extremity of the reduced portion 19 to lock the nut upon this extremity. The opposite side edges of the gear plate 21 work between the parallel guide strips 1 upon the inner sides of the side plates 1 as it is moved longitudinally be tween said plates. Engaged with the teeth 22 in the gear plate 21 are the teeth 27 of the segmental gear 28, which is carried upon the shaft 29, which latter is ournaled in the uppermost portions of the parallel side plates 1, near the rear ends thereof. Formed in a portion of the curved edge of the segmental gear 28 are suitable handle receiving openings 30 in which the lower end of a suitable handle may be temporarily secured to rotate the segmental gear 28 and thus move the shaft 15 forwardly or rearwardly as desired. Also connected to the ends of'the shaft 29, outwardly of the side plates 1, are the connecting links 33, which are pivoted to the rear ends of the clamp bars 34, one of the links '33 being extended to form the clamp raising bar 31, to the other end of which is secured the handle 32 extending at an angle. The clamp bars 34 are suitably curved to conform to the upper surface of the plates 1 and'near their lower ends are With the link 33.

curved to avoid the tread portion of a rail to be bored, the outer extremity of these clamp bars being turned inwardly to engage the web of the rail upon the surface opposite to that engaged by the front connecting member 5 of the drill framework. The clamp bars 34 are connected at their outer curved portions by the connecting rod 37 and are thus held in proper spaced relation to one another. A suitable plug 35 has its shank 36 secured in the'fi'ont cross plate 5 and projects therefrom to extend into a drilled opening to hold the mechanism in proper position longitudinally of the rail during the boring of the next opening.

Projecting outwardly from each side plate 1, near the upper edges thereof, are the stop pins 38, against which the under surface of the clamp bars 34 engage to limit the downward swinging movement thereof and prevent them from reaching a dead center.

Pivoted to the outer surface of each side platel, near the lower edge thereof and by means of the pivot pin 39, is the slotted guide arm 40, which has its upper portion slotted, as shown at 41, to receive therethrough the guide pin 42 carried by the clamp bar 34. It will be seen that as the outer ends of the shaft 29 are squared and the rear ends of the clamp bars 34 are pivoted to connecting links 33 connected to the squared ends of said shaft, the rear ends of the clamp bars 34 will be caused to move upwardly and forwardly by raising the handle 32 connected As the clamp bars 34 move forwardly each guide pin 42 will move within its guide slot 41 and cause the guide arm 40 to swing forwardly and upwardly upon its pivot 39 and thus compel the for ward ends of the clamp bars to rise from engagement against the outer side of the rail web. It will readily be understood that a reverse movement of the handle 32 will move these parts in the opposite direction to prop.- ei'ly engage the outer extremities of the clamp bars against the outer surface of the web of the rail and clamp them in such posit-ion.

Meshing with the gear 17 is the small bevel gear 43 carried on the'lower end of the vertical shaft 44, which may be connectt ed with any suitable source of power to drive the drill. The vertical shaft-44 is mounted in the bracket brace 45 adjacent the bevel gear 43, which bracket is secured to the parallel vertical side pieces 46 of the.

drive frame, said side pieces 46 being positioned upon opposite sides of the shaft 44.

Thelower ends of the side pieces 46, belo-w the braces 45, are enlarged and rounded, as shown at 47, and provided with central apertures to allow said lower ends to fit over the flanges 14 of the central braces 12.

The upper ends of the side pieces 46. are also mounted and apertured centrally, as shown at 48. to receive the opposite ends of the short horizontal shaft 49, carrying the bevel gear 50. The side pieces 46 are connected near their upper ends by the spacing cross brace 51, which acts as'a bearing for the upper end of the vertical shaft 44. Upon the upper endof theshaft 4-4 above the brace 51 is the bevel gear 52 in mesh with the bevel gear 50 of the shaft 49 Loosely mounted oiithe ends of the shaft 49 are the opposite parallel ends 53 of a swinging bracket, said ends connecting with the straight portion 54 of said bracket. A short shaft having the bevel gears 55 and 56 upon its lower and upper ends, respectively, is positioned through the portion 54 of the swinging bracket, the lower gear 55 meshing with the gear 50, while the upper gear 56 mesheswith the bevel gear 57 carried upon the long horizontal shaft 58. The bevel gear 57 is held in mesh with the gear 56 by means of the L-bar 59, into one portion of which is screwed or otherwise secured the pivot block, through which err tends the short shaft carrying the gear 56, said portion being positioned between the gear 56 and the straight portion 54 of the swinging bracket, whilethe other portion of this -bar has integral therewith the sleeve 60, through which sleeve passes theadjacent end of the shaft 58. The sleeve 60 has the circular rib 61 upon its outer circular edge and over this rib is engaged the curved end 62 of the clamp 63, which is clamped around the shaft 58, to retain the sleeve 60 in pro-per position longitudinally of the shaft. Similarly secured upon the opposite end of the shaft 58 is a like sleeve 64 integral with the L-bar 65, this outer end of the shaft 58 passing through the sleeve 64 and having the bevel gear 66 mounted thereon in mesh with the bevel gear 67, carried upon a suitable stub shaft positioned'through the L-bar 65 and the straight portion 68 of a second swinging bracket having its ends 69 bent at right angles to the straight portion 68 and parallel with one another, the bevel gear 70 being carried upon the opposite end of the stub shaft. The parallel ends 69 of this last mentioned swinging bracket are loosely mounted upon bosses carried upon frame 73, in which bosses runs the power shaft 71, which has the bevel gear 72 meshing with the bevel gear 70 for the purpose of transmit-ting power thereto and operating the above described mechanism. The face 74 of the frame 73 may be secured upon a work car or truck, as may be desired.

This drill and drive may be carried upon any work car or platform and may be swung (after the car to which the frame 73 is secured has been brought to a stand still) to the proper position, the swinging operation being accomplished by means of the pivoted parts, etc., carried on the parallel and straight portions of the swinging brackets.

Meshing with the gear 17 is the small bevel gear 43 carried on the lower end of the vertical shaft 44, which may be connected with any suitable source of power to drive the drill. v

hen the drill is in proper position the front cross brace 5 presses against the inner side of the web of the rail to be boredand the clamp bars 3 1 may be swung on the links 33 toraise the outer or forward'ends of these bars above the tread of the rail and the handle 32 carried on. the link 33 is swung rearwardly and downwardly to draw the forward extremities of the clamp bars tightly against the outer side of the rail web.

It will be understood that the slotted guide arm 40 will swing properly upon its pivot 39 to cause the upward movement of the outer ends of the clamp bars 34 and properly guide them. It will be understood that the stop pins 38 will limit the downward movement of the clamp bars, the clamp bars resting against the stop pins which prevent said clamp bars from reaching a dead center and thus becoming locked. A suitable handle is then positioned within one of the handle openings 30 of the segmental gear wheel 28 and pressure is applied upon the side of the handle to rotate the segn'ient 28 upon the shaft 29 and force the drill carrying shaft forwardly by the engagement of the teeth 27 of the segment 28 with the teeth 22 of the gear plate 21.

The shaft 15 will move freely through the central brace plates 12 and their flanges 14 without disturbing the position of the bevel gear 17 and its collar 18 between said central braces 12. The power shaft 71 is then rotated by means of a suitable engine or motor.(not shown) to cause the gears and 67 to rotate, the gear 67 engaging the gear 66 and thus rotating the shaft 58 with the gear 57 upon its opposite end. The gear 57, being in mesh with the gear 56, will rotate the latter and also the gear 55 upon the same stub shaft, which gear 55 is in mesh with the gear 50, thus rotating the shaft 4-1 by engagement of the gear 50 with the gear 52 upon the upper end of said shaft. The small bevel gear 43 upon the vertical shaft 4 1 is in mesh with the bevel gear 17, which is keyed to the shaft 15. he shaft 15 will be caused to rotate and, as the drill is secured in the forward end of this shaft, it will be forced through the web of a rail, the drill being guided through the central opening 10 in the front cross brace 5 and fed by means of the gear 28 and rack 21.

The drill may be oiled during the operation of the device, through the oil guide opening 9 in the upper plate 8 of the front cross brace. After each drilling operation, the device may be swung the proper distance longitudinally of the rail, it being under stood that the clamp bars 34L have been raised from engagement with the rail. The distance may be properly gaged by a suitable plug 36 being forced through the last drilled opening. This will prevent longitudinal movement of the drilling apparatus in respect to the rail and at the same time gage the distance between the holes.

As the device is composed of a comparatively small number of parts of simple formation, it may be readily and cheaply manufactured.

What I claim is:

1. A device of the class described, comprising a framework, central cross braces for said framework, a shaft rotatably secured through said central braces and extending longitudinally of said framework, means carried by said framework for moving said shaft longitudinally of said framework, means for rotating said shaft within the cross braces of said framework, clamp arms connected to said framework and extending beyond the latter, means for moving said clamp arms in respect to the framework to draw and hold the latter against the web of a rail, and straight guide links having their lower ends secured to the framework while their upper ends are connected with the clamp arms for guiding and limiting the latter in their movement.

2. The combination with a drill frame having cross pieces and collars on said cross pieces; of a drive frame having side pieces,

the lower ends of said side pieces being apertured for engagement over the collars of the cross pieces, means for connecting the side pieces of the drive frame, a power shaft 1'0- tatably mounted between the side pieces of .said drive frame, a shaft in said drill frame,

and means to transmit rotary motion from the drive shaft to the drill shaft.

3. The combination with a drill frame having cross pieces and a shaft carried in said cross pieces, said shaft having a gear positioned thereon, the cross pieces having collars projecting in opposite directions, the shaft being rotatably positioned in said collars; of a drive frame having parallel side pieces, the lower ends of said side pieces being provided with suitable openings to accommodate the collars, means for connecting the parallel side pieces of the drive frame, a shaft carried by the connecting means having a gear upon its lower end for mesh with the gear on the shaft positioned through said collars for transmitting rotary motion to said drill shaft.

4:. The combination with side pieces of a drive frame connected by central cross pieces upon which a drive frame is pivotally secured; of a transverse shaft carried by the side pieces, links secured, to opposite ends of the shaft, a second shaft secured through the outer ends of the links, clamping'arms having their rear ends secured upon the second shaft, the forward ends of said clamping arms being adapted for clamping e11- gagementagainst the far side of a rail, straight guide links having their lower ends pivoted to the side pieces and elongated slots through their upper ends, means positioned through the slots and connected with the clamping arms to guide and limit the movement of said arms upon rotation of the first shaft to raise or lower said arms, and stop pins secured in the side pieces near their upper edges for limiting the downward movement of the clamping arms and preventing the same from reaching their dead centers.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LESLIE WV. MORTON.

Witnesses E. A. HEALI), W. D. PLA'JYTENBURG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

7 Washington, D. G. r 

